TY - JOUR
T1 - Durability study of Pt3Ni1 catalysts as cathode in PEM fuel cells
AU - Colón-Mercado, Héctor R.
AU - Kim, Hansung
AU - Popov, Branko N.
PY - 2004/8
Y1 - 2004/8
N2 - The catalytic, corrosion and sintering properties of Pt/C and Pt 3Ni1/C catalysts are evaluated using an accelerated durability test (ADT). The catalytic activity and dissolution rate of Ni from a Pt3Ni1/C alloy catalyst are estimated in the same time domain. A strong correlation exists between the amount of Ni dissolved and the oxygen reduction activity of the catalyst. To compare the sintering resistance of both the Pt/C and Pt3Ni1/C catalyst, the particle size of the catalysts before and after the ADT is measured by using transmission electron microscopy. The Pt3Ni1/C alloy, due to anchor effects in its structure, shows high sintering resistance.
AB - The catalytic, corrosion and sintering properties of Pt/C and Pt 3Ni1/C catalysts are evaluated using an accelerated durability test (ADT). The catalytic activity and dissolution rate of Ni from a Pt3Ni1/C alloy catalyst are estimated in the same time domain. A strong correlation exists between the amount of Ni dissolved and the oxygen reduction activity of the catalyst. To compare the sintering resistance of both the Pt/C and Pt3Ni1/C catalyst, the particle size of the catalysts before and after the ADT is measured by using transmission electron microscopy. The Pt3Ni1/C alloy, due to anchor effects in its structure, shows high sintering resistance.
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U2 - 10.1016/j.elecom.2004.05.028
DO - 10.1016/j.elecom.2004.05.028
M3 - Article
AN - SCOPUS:4043065619
VL - 6
SP - 795
EP - 799
JO - Electrochemistry Communications
JF - Electrochemistry Communications
SN - 1388-2481
IS - 8
ER -